我正在尝试解析一个文本,并基于标记来执行操作。
文本为:
<window>
<caption>My window
</window>
<panel>
<label>
<caption>
<position>50,50
<color>255,255,255
</label>
</panel>
代码:
function parse_tag(chunck)
for start_tag,tag_name in string.gfind(chunck,"(<(.-)>)") do
if (child_obj[tag_name]) then
print(start_tag)
for data,end_tag in string.gfind(chunck,"<" .. tag_name ..">(.-)(</" .. tag_name ..">)") do
for object_prop,value in string.gfind(data,"<(.-)>(.-)") do
print("setting property = "" .. object_prop .. "", value of" .. value);
end
end
print("</" .. tag_name ..">");
elseif(findInArray(main_obj,tag_name)) then
print("Invalid data");
stop();
end
end
end
for key,tag in ipairs(main_obj) do
for start_tag,tag_name,chunck,end_tag in string.gfind(data,"(<(" .. tag.name .. ")>)(.-)(</" .. tag.name .. ">)") do --> searching for window/panel start and end tags
if (findInArray(main_obj,tag_name)) then
print(start_tag)
parse_tag(chunck); --> parses the tag with child tag
print(end_tag)
end
end
end
它似乎无法获得值,因为我得到了以下输出:
<window>
</window>
<panel>
<label>
setting property = "caption", value of
setting property = "position", value of
setting property = "color", value of
</label>
</panel>
如何使用匹配第一个<%tag%>
之后的字符串,直到下一个<%tag%>
或块的末尾。
string.gfind(data,"<(.-)>(.-)")
在这里,您尝试将该值与.-
相匹配。然而,-
是惰性的,即.-
将尝试尽可能少地匹配,在这种情况下,是一个空字符串。
试着告诉它匹配,直到下一个<
:
string.gfind(data,"<(.-)>(._)<")
尝试了不同类型的捕获。这个
string.gfind(data,"<(.-)>([^%<+.-%>+]+)")
似乎工作